Journal
JOURNAL OF PHARMACEUTICAL INNOVATION
Volume 7, Issue 2, Pages 47-55Publisher
SPRINGER
DOI: 10.1007/s12247-012-9126-x
Keywords
Ropinirole; Design expert optimization; HPTLC; Stability indicating; Validation; Robustness; Precision
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Funding
- Council for Scientific and Industrial Research, Pusa road, New Delhi
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A simple, precise and stability-indicating thin-layer chromatographic method for estimation of ropinirole HCl was developed and validated as per ICH guidelines. The mobile phase consisted of acetone-cyclohexane-6 M ammonia solution (8:5.5:0.5, v/v/v). Scanning the drug was done at 250 nm. Compact spots for ropinirole HCl were found at an R (f) value of 0.51 +/- 0.002. The linear regression analysis data for the calibration plots showed good linear relationship with R (2) 0.9976 +/- 0.0011 in the working concentration range of 100-3,000 ng spot(-1). The method was validated for precision, accuracy, ruggedness, robustness, specificity, recovery, limit of detection (LOD), and limit of quantitation (LOQ). The LOD and LOQ were 12.89 and 42.53 ng spot(-1), respectively. The drug was subjected to degradation; the peaks of degradation products were well resolved from the standard with significantly different R (f) values. Hence, this method can be used for quality control assay of ropinirole.
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